def _capture_loop(self):
dt = 1 / self.fps
logger.debug("Observation started")
while self.isrunning:
ret, img = self.camera.read()
if ret:
if len(self.frames) == self.max_frames:
self.frames = self.frames[1:]
self.frames.append(img)
time.sleep(dt)
logger.info("Thread stopped successfully")
def gen_frames(self) -> Generator:
logger.debug('Sending frames')
while True:
success, frame = self.camera.read()
if not success:
logger.error('No camera found.')
break
else:
ret, buffer = cv2.imencode('.jpg', frame)
frame = buffer.tobytes()
yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')
self.camera.release()
def run(self):
logger.debug("Perparing thread")
if self.thread is None:
logger.debug("Creating thread")
thread = threading.Thread(target=self._capture_loop, daemon=True)
logger.debug("Starting thread")
self.isrunning = True
thread.start()
logger.info("Thread started")
def video_feed() -> Response:
logger.debug(f'Stopping video.')
return Response(truman.stop(), )
def video_feed() -> StreamingResponse:
logger.debug(f'Sending images . . .')
return StreamingResponse(truman.gen_frames(),
media_type="multipart/x-mixed-replace;boundary=frame")
def stop(self):
logger.debug("Stopping thread")
self.isrunning = False